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Finding the Fourth Proportional to 18,434, 25,448 and 12,773.04

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Solution

The fourth proportional to 18,434, 25,448 and 12,773.04 is: 17,633.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434 : 25,448 = 12,773.04 : x
  2. Step 2: Convert to fraction form
    18,434/25,448 = 12,773.04/x
  3. Step 3: Cross multiply
    18,434x = 25,448 × 12,773.04
  4. Step 4: Simplify right side
    18,434x = 325,048,321.92
  5. Step 5: Solve for x
    x = 325,048,321.92/18,434
  6. Step 6: Final answer
    x = 17,633.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.